Home / 213,795.12-320,741.22-113,902.68

Finding the Fourth Proportional to 213,795.12, 320,741.22 and 113,902.68

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Solution

The fourth proportional to 213,795.12, 320,741.22 and 113,902.68 is: 170,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,795.12 : 320,741.22 = 113,902.68 : x
  2. Step 2: Convert to fraction form
    213,795.12/320,741.22 = 113,902.68/x
  3. Step 3: Cross multiply
    213,795.12x = 320,741.22 × 113,902.68
  4. Step 4: Simplify right side
    213,795.12x = 36,533,284,544.47
  5. Step 5: Solve for x
    x = 36,533,284,544.47/213,795.12
  6. Step 6: Final answer
    x = 170,879.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.